A fetching ex-NYU professor accused of stalking and harassing Citigroup's chief economist — her former lover — with explicit photos and death wishes says he contacted her online even after he had her arrested.

Citigroup honcho Willem Buiter sent his ex-mistress Heleen Mees "hundreds of emails" over the past two years — including after she was jailed in July on stalking charges, her lawyer said Monday.

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Attorney Ira London declined to comment on the content of the emails between Mees, 44, and Buiter, 63, but said they show the two carried on a "bilateral relationship."

The high-profile number cruncher reached out to Mees via Skype, LinkedIn and e-mail, London said.

"The complainant and the defendant have both been in contact via Skype as recently as June 19, 2013," he said, adding the most recent attempt was Aug. 7.

He wouldn't specify how many times Buiter tried to contact Mees after her arrest last month, but said the communication dated back to 2011.

"Obviously, the district attorney never looked into that. We have copies of those emails," he told the judge.